The term cone head obviously refers to the big craniums these skulls possess. While many maintain these shapes were created by a practice called cranial deformation, achieved by binding an infant’s head with string, rope, textiles or wooden clamps, this theory does not hold up under scrutiny. In the cases where cranial deformation by humans was practiced, the skulls of the human subjects consist of the same overall volume of cavity space within the skull. The skulls are merely altered in shape. Furthermore, cranial deformation results in scar tissue that shows signs of healing over time, as the infant grows and the skull plates close. None of these cone head skulls show evidence of artificial tampering. In fact, the cranial volume of these skulls is more than 25% larger than human skull volume. That means the brains of these subjects were also 25% larger than human brains. Normal human skulls from the Inca time period have 1100-1200 cm3 of cranial volume.
Cranial deformed skulls from the Inca time, although somewhat elongated in shape, have the same cranial volume. The true cone head skulls have 1500 cm3 volume–significantly more than a human. Some people have theorized that these people suffered from “water on the brain” or fluid build up on the skull cavity. However, examination of the skull cavities reveals ridges and indentations consistent with blood vessels and brain tissue that fill the entire volume of the skull.
Compare the shapes of these two skulls. The one on the left is from a human, found in Peru, from the same time as the skull on the right. Notice the differences in size and shape of the craniums, nose area and jaw shape. Many people have stated that intentional cranial deformation created the head shapes.
While ancient primitive people did practice this, in all those cases, the skull volume remains relatively the same as non-deformed skulls. However, in authentic alien elongated skulls, there was a greater volume of brain matter. This cannot be created by cranial deformation. Yet, experts cannot offer any explanaiton for this.